A new study finds something transportation reformers have long suspected, but never proven.

Here's one way to understand the story of biking in Sevilla, Spain: It went from having about as much biking as Oklahoma City to having about as much biking as Portland, Oregon. It did this over the course of four years.

In the program's first 40 days, the campus bikes averaged 12 checkouts per bike per day. Why exactly did it work?

The need for better streets is global, but the fight is local.

The obscure but hugely influential committee is asking for direct feedback.

If you want to learn how a city can start doing good street projects faster, keep an eye on Austin, Texas.

In one U.S. city after another, voters keep making their opinions clear.